Toro 72907 - Cooling System Maintenance; Cooling System Safety; Cleaning the Engine Screen and Engine-Oil Cooler

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Figure 83
1. Feeler gauge
• If the gap is less than 0.25 mm (0.01
inch), then install the shim.
• If the gap is suf cient, proceed to the
safety check in step F .
F . Perform the following safety check:
i. Sit on the seat and start the engine.
ii. Make sure that the blades do not
engage with the blade-control switch
(PT O) in the O FF position, and that
the clutch is disengaged.
If the clutch does not disengage,
install the shim again.
iii. Engage and disengage the
blade-control switch (PT O) 10
consecutive times to ensure that the
clutch is functioning properly .
Cooling System
Maintenance
Cooling System Safety
• Swallowing engine coolant can cause poisoning;
keep out of reach from children and pets.
• Discharge of hot, pressurized coolant or touching
a hot radiator and surrounding parts can cause
severe burns.
– Always allow the engine to cool at least 15
minutes before removing the radiator cap.
– Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
Cleaning the Engine Screen
and Engine-Oil Cooler
Service Interval : Before each use or daily
Remove any buildup of grass, dirt, or other debris
from the oil cooler and the engine screen ( Figure 84 ).
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Figure 84
Remove any buildup of grass, dirt, or other debris
from the engine screen. This helps ensure adequate
cooling and correct engine speed and reduces the
possibility of overheating and mechanical damage to
the engine ( Figure 81 ).
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